You must know the traffic if you walk a city. The traffic lights are the same in every city. There always lights. You can cross the street at the light and you must stop and wait at the light. The light means “slow down and stop”. If you drive car, you must drive on the side of the road in China. But in England, people drive on the side of the road.

over there

提示：你的笔友Tom ,住在美国的一个农场，今年12岁，喜欢踢足球、旅行，每天8点上学，下午3点放学，他爸爸是一个农场主，爱好看电视。妈妈是一名教师，读书是她的爱好。